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Cambridge · O Level · Biology

October/November 2024 — Paper 2 · Variant 1.

8 structured questions · 21 marks

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The mark scheme comes with the Biology course.

Topics covered

  • Transpiration and translocation
  • Enzyme action
  • Excretion
  • Effects of humans on ecosystems
  • Biological molecules
  • Immunity
  • Variation

Questions in this paper

  • Q1c(i)Transpiration and translocation1 marksincludes a figure
  • Q1bTranspiration and translocation3 marks
  • Q1c(ii)Transpiration and translocation3 marksincludes a figure
  • Q1a(iii)Transpiration and translocation2 marksincludes a figure
  • Q1a(i)Transpiration and translocation1 marksincludes a figure
  • Q1a(ii)Transpiration and translocation1 marksincludes a figure
  • Q2bEnzyme action2 marks
  • Q2aEnzyme action4 marks
  • Q3aMammalian nervous system2 marksincludes a figure
  • Q3b(i)Mammalian nervous system2 marksincludes a figure
  • Q3c(i)Mammalian hormones1 marksincludes a figure
  • Q3b(ii)Mammalian nervous system4 marks
  • Q3c(ii)Mammalian hormones2 marks
  • Q4a(ii)Excretion2 marks
  • Q4cEffects of humans on ecosystems2 marks
  • Q4a(i)Excretion2 marks
  • Q4bRespiration4 marks
  • Q5b(iii)Biological molecules1 marks
  • Q5a(ii)Biological molecules2 marksincludes a figure
  • Q5c(ii)Features of organisms2 marksincludes a figure
  • Q5b(ii)Ecosystems and biodiversity3 marksincludes a figure
  • Q5a(i)Sexual reproduction in plants4 marksincludes a figure
  • Q5b(i)Sexual reproduction in plants2 marksincludes a figure
  • Q5c(i)Features of organisms1 marksincludes a figure
  • Q6c(i)Ecosystems and biodiversity3 marksincludes a figure
  • Q6dCirculatory system5 marksincludes a figure
  • Q6bEnergy flow2 marksincludes a figure
  • Q6c(ii)Conservation5 marks
  • Q6aEnergy flow2 marksincludes a figure
  • Q7aImmunity7 marks
  • Q7bVariation3 marks

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